Earthquakes in Tonga — November 2025

14 earthquakes were recorded in Tonga during November 2025, an average of 0.5 per day.

14 reached magnitude 4 or above and 5 reached magnitude 5 or above. The average focal depth was 166 km.

The month's largest event in Tonga was a magnitude 5.7 earthquake near Hihifo, Tonga on 14 November 2025 at 19:09 UTC. A magnitude 5.7 earthquake radiates roughly 5,351 tons of TNT equivalent in seismic energy.

That is close to the Tonga monthly average of 18 events over the period we cover, and up from the 8 recorded the previous month.

43% of events here are shallow (under 70 km), 43% intermediate (70–300 km) and 14% deep-focus (over 300 km). That proportion of deep-focus events is the signature of a subduction zone: only a cold slab descending into the mantle stays brittle enough to rupture at those depths.

By band, the catalogue holds 9 in the magnitude 4 range, 5 in the magnitude 5 range.

Activity peaked on 15 November, when 3 events were recorded.

The month's largest events were M5.7 near Hihifo, Tonga on 14 November at 10 km; M5.6 near Hihifo, Tonga on 28 November at 258 km; M5.0 near Neiafu, Tonga on 08 November at 10 km.

That is 24% below the 18 events Tonga averages per month across the 21 months on record.